Amirah A, Suharto T, Yetti E, Sari A, Mayridian R. The Influence of Covid-19 Preparedness Through Health Care Implementation on Ship Crew. MKMI [Internet]. 2021 Dec. 31 [cited 2024 Dec. 22];17(4):116-23. Available from: https://journal.unhas.ac.id/index.php/mkmi/article/view/13167